/**
* Concat arrays in one.
*
* @param arrays Arrays.
* @return Summary array.
*/
public static int[] concat(int[]... arrays) {
assert arrays != null;
assert arrays.length > 1;
int len = 0;
for (int[] a : arrays) len += a.length;
int[] r = Arrays.copyOf(arrays[0], len);
for (int i = 1, shift = 0; i < arrays.length; i++) {
shift += arrays[i - 1].length;
System.arraycopy(arrays[i], 0, r, shift, arrays[i].length);
}
return r;
}
/**
* Sets given values starting at {@code 0} position.
*
* @param v Values to set.
*/
public void set(Object... v) {
A.ensure(v.length <= vals.length, "v.length <= vals.length");
if (v.length > 0) System.arraycopy(v, 0, vals, 0, v.length);
}
/**
* Sets given values starting at provided position in the tuple.
*
* @param pos Position to start from.
* @param v Values to set.
*/
public void set(int pos, Object... v) {
A.ensure(pos > 0, "pos > 0");
A.ensure(v.length + pos <= vals.length, "v.length + pos <= vals.length");
if (v.length > 0) System.arraycopy(v, 0, vals, pos, v.length);
}